Where does “първо” come from?

първо (Bulgarian) comes from Bulgarian първи, from Proto-Slavic pьrvъ, from Proto-Balto-Slavic pírˀwas, from Proto-Indo-European pr̥h₂wós, from Proto-Indo-European per-, from Proto-Indo-European pr̥tós — passed , crossed.

първо (Bulgarian): first, firstly, at first, before anything or anyone else

Definitions

  1. first, firstly, at first, before anything or anyone else

Ancestry of “първо”, step by step

StepLanguageWordMeaning
1Bulgarianпървиfirst; former; main, chief, foremost, first,...
2Proto-Slavicpьrvъfirst
3Proto-Balto-Slavicpírˀwas—
4Proto-Indo-Europeanpr̥h₂wósfirst
5Proto-Indo-Europeanper-before, in front; first; to go through
6Proto-Indo-Europeanpr̥tóspassed , crossed
Every word from Proto-Indo-European pr̥tós →Every word from Proto-Indo-European per- →Every word from Proto-Indo-European pr̥h₂wós →
първо — Etymology, Origin & Word History | Etymology Explorer